Make module names consistent and remove redundant module casting (#909)

Address the inconsistent naming of smart modules by removing all "Module" suffixes and aligning filenames with class names. Removes the casting of modules to the correct module type now that is is redundant. Update the adding of iot modules to use the ModuleName class rather than a free string.

kasa/smart/modules/led.py

@@ -0,0 +1,49 @@
+"""Module for led controls."""
+
+from __future__ import annotations
+
+from ...interfaces.led import Led as LedInterface
+from ..smartmodule import SmartModule
+
+
+class Led(SmartModule, LedInterface):
+    """Implementation of led controls."""
+
+    REQUIRED_COMPONENT = "led"
+    QUERY_GETTER_NAME = "get_led_info"
+
+    def query(self) -> dict:
+        """Query to execute during the update cycle."""
+        return {self.QUERY_GETTER_NAME: {"led_rule": None}}
+
+    @property
+    def mode(self):
+        """LED mode setting.
+
+        "always", "never", "night_mode"
+        """
+        return self.data["led_rule"]
+
+    @property
+    def led(self):
+        """Return current led status."""
+        return self.data["led_status"]
+
+    async def set_led(self, enable: bool):
+        """Set led.
+
+        This should probably be a select with always/never/nightmode.
+        """
+        rule = "always" if enable else "never"
+        return await self.call("set_led_info", dict(self.data, **{"led_rule": rule}))
+
+    @property
+    def night_mode_settings(self):
+        """Night mode settings."""
+        return {
+            "start": self.data["start_time"],
+            "end": self.data["end_time"],
+            "type": self.data["night_mode_type"],
+            "sunrise_offset": self.data["sunrise_offset"],
+            "sunset_offset": self.data["sunset_offset"],
+        }